Date: Mon, 16 Sep 2013 20:27:04 -0600 From: Kurt Seifried <kseifried@...hat.com> To: oss-security@...ts.openwall.com CC: Florian Weimer <fweimer@...hat.com> Subject: Re: Re: CVE Request: glibc getaddrinfo() stack overflow -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 09/14/2013 04:56 AM, Florian Weimer wrote: > On 08/22/2013 09:18 AM, Florian Weimer wrote: >> On 07/04/2013 09:06 PM, Maksymilian wrote: >>>> Perhaps there are some missing CVE ids? >>> >>> In 2011 the problem with alloca() was not defined as a >>> vulnerability. >>> >>> http://sourceware.org/bugzilla/show_bug.cgi?id=12671 >> >> I believe the analysis in this bug report is incorrect. The >> security implications are unclear. A straight copy of a long >> name to a stack buffer should trigger a crash because it hits the >> guard page, but even that could be a problem for daemons. >> >> On the other hand, it's impossible to know for sure that no GCC >> version ever lays out the stack in such a way that we end up with >> a problem. Multi-threaded programs linking in script interpreters >> are more exposed to these problems, too. > > Kurt told me that the above didn't make it sufficiently clear that > I consider this issue CVE-worthy. I prefer things to be explicit rather than assumed =). Please use CVE-2013-4357 for this issue. - -- Kurt Seifried Red Hat Security Response Team (SRT) PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAEBAgAGBQJSN733AAoJEBYNRVNeJnmT378P/1+MwskEw1/W62U4GiP6OvEM Jwx+NagiRoW1vSzmMxMeg623qH+oc5KrmtYHv8X/vG18CTm89gIf7Di4usKKWfOa 2YL5nIwJZrmHVf8kBsH/J8TPZYzzIpkcLHW/w8uqpXQJrDjjJUuHAD5PNHJE+rYA ir1jK09r/Bbv+eGgPQyWMadvxHKRuyhTGNamz5URXJDggEhzlgs9DJkMlVZRmF8M apSWDXWwqf6851aPNornYq78aJEy6itVR5k59e/vFCl19irELj9/7yUDhOcNb8Fk R62uTP4KIOkYIiJONdJlfjvFNN1shhhnZGyiqR7JrD20S7qhLyUWLbIap+l9L0GV 0S1uCrvYhd6spNEmMD2xPdQqF/x1hRqviWcBVtZ32J/jJznb7DRbzhalDxaCCdFr POfK3vo4REPp7rJZSOM68Synltc4uYMImY4YYGd4Ib7biGciKG+PdeFeqcCXfRtS RC3Af3c+yE3BpUuJO/ce3BKIRYw/K7LtUxEHVGfG86mn0teze/m3ghOCE62c1vOv A3zn79ykd2peuSyNOh3masCsuK3AiJG0F9N2U4KPYlDUvVzwJUPH1QAhYPBVPrYI yKz45S1HxeYacrOaf55a5eNSvUqIvvEs7Q7xoSWiV/WTqUO4EDp2jo1QuVgwpAFM 2MObiF6IKdmIsKIZVF1i =Xt7J -----END PGP SIGNATURE-----
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